US407698A - Clam ping-frame - Google Patents
Clam ping-frame Download PDFInfo
- Publication number
- US407698A US407698A US407698DA US407698A US 407698 A US407698 A US 407698A US 407698D A US407698D A US 407698DA US 407698 A US407698 A US 407698A
- Authority
- US
- United States
- Prior art keywords
- frame
- piano
- timbers
- timber
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 235000020639 clam Nutrition 0.000 title 2
- 239000003292 glue Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 210000002832 Shoulder Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/14—Clamps for work of special profile
- B25B5/145—Clamps for work of special profile for plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
(No Model.) T. STEINERT- GLAMPING FRAME I 8 Patented July 23, 1889. No. 407,69 4
UNITED STATES PATENT OFFICE.
THEODOR STEINERT, OF CHICAGO, ILLINOIS.
CLAM Pl NG -FRAM E.
SPECIFICATION forming part Of Letters Patent No. 407,698, dated July 23, 1889.
Application fi February 19, 1889. Serial No. 300,501. (No model.)
To aZZ whom it may concern:
Be it known that I, THEoDoE STEINERT, a
, citizen of the United States of America, re-
siding at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Clamping- Frames, of which the following is a specification, reference being had therein to the accompanying drawings.
This invention relates to the manufacture of upright pianos, and, more particularly, of the back-frames thereof, being composed of a series of timbers separated by blocks and rigidly connected therewith to make the whole a strong and durable framework for supporting the cast-iron string-frame. These timbers and separating blocks heretofore were glued together one by one, whereby the process of manufacture was a very slow one ;v
and it has been the object of this my invention to provide a device that will enable me to glue the entire frame in one operation and to insure its being square and true; and with that object in view my invention consists of the novel devices and combinations of devices hereinafter described and specifically claimed.
In the accompanying drawings, Figure 1 represents a perspective view of the pianoback frame as placed and secured in the gluing-frame; Fig. 2, a perspective view of the piano-back frame as completed and removed; Fig. 3, a section on line 3 3 in Fig. 2, and Fig. 4 a perspective view of the gluingframe.
Oorresponding letters of reference in the several figures of the drawings designate like parts.
The piano-back frame consists of the square timbers A, planed to have two parallel sides and two sides tapering. These timbers A are secured parallel with each other by gluing separating-blocks a and 1) between the same at the opposite ends thereof and by securing under their upper ends a plate of Wood 0 and under their lower ends a plate of wood (I, also by gluing.
The gluing-frame consists of two flat timbers E and F, secured a proper distance apart at one end by a bar of wood G, rigidly secured upon these timbers E and F, and at their opposite ends by a stringer II, framed between, the tenons of which enter mortises in the timbers E and F. The bar G being secured upon timber F by wood-screws, the
distance between the bars E and F may be varied to suit different-sized piano-frames, for which purpose different-length stringers H are to be provided. An upwardly-projecting plate f is secured against the lower edge of timber F, which, together with bar G, will provide shoulders of an angle of ninety degrees as a gage for holding the piano-back frame to be square while being glued, and upon the lower edge of timber E is secured a strip c as a gage for holding the plate 0 of the piano-back frame in proper ositions. Upon the end opposite to bar G is secured upon timber E a block I, through which a clamp-screw t' is tapped, and upon each of the bars G and block I is fixed a post j and j for a bar J, having square holes at or near its ends that will fit upon posts j and j to tie the same and thereby prevent their spreading or a bending of timber E while clamping the piano-back frame between bar G and block I by screw '5. The lower end of the piano-back frame is contracted by a removable joiners clamp K, provided with clamp-screw Z.
Formakin g the piano-back frame, the parts A, a, b, c, and d, all being planed to proper sizes, are warmed on or in a stove or oven, and are then coated at their joining-faces with glue and are then placed in the gluingframe in proper relative posit-ions, and after the clamp-screws t' and Z are tightened a series of common joiners clamps will be attached in the usual manner over timber E and bar J and over timber F and blocks 2) for compressing and holding the plates 0 and cl in close contact with the blocks a and b and with the ends of timbers A until the glue has hardened, when the piano-back frame is completed and maybe removed from the gluingframe for another one to be placed therein.
What I claim is The frame for the purpose described, consisting of timbers E and F, connected by bar G and stringer H, and having block I, with clamp-screw t, and posts jj, engaging bar J, said timber F having projecting plate f, and timber E having strip 6, all substantially as set forth.
In testimony whereof I affix my signature in presence of two witnesses. I
THEOD OR STEINERT.
IVitn esses:
WILLIAM H. LOTZ, OTTO LUBKEET.
Publications (1)
Publication Number | Publication Date |
---|---|
US407698A true US407698A (en) | 1889-07-23 |
Family
ID=2476640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US407698D Expired - Lifetime US407698A (en) | Clam ping-frame |
Country Status (1)
Country | Link |
---|---|
US (1) | US407698A (en) |
-
0
- US US407698D patent/US407698A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US637373A (en) | Framing-square. | |
US407698A (en) | Clam ping-frame | |
US535673A (en) | William clayton | |
US600370A (en) | Alois koiiler | |
US962376A (en) | Door-holder. | |
US1145514A (en) | Clamp. | |
US189831A (en) | Improvement in clamps for making frames | |
US684835A (en) | Clamp for gluing columns or pillars. | |
US831486A (en) | Clamp. | |
US2856A (en) | Casper kittinger | |
US704553A (en) | Pedestal-clamp. | |
US362230A (en) | Charles schaubel | |
US1150962A (en) | Hand-clamp. | |
US507131A (en) | Clamping-machine | |
US617123A (en) | roberts | |
US1004920A (en) | Universal adjustable miter jack and vise. | |
US1363433A (en) | Work-clamping device | |
US378601A (en) | Albert t | |
US1001280A (en) | Multiple tool. | |
US171899A (en) | Improvement in mitering-machines | |
US919930A (en) | Woodworking-clamp. | |
US1227798A (en) | Column-form clamp. | |
US764117A (en) | Table for making sounding-boards for pianos. | |
US575909A (en) | Joiianf schuler and michael vvuzel | |
US357387A (en) | Clamp |